BATTERY CONTROL METHOD AND BATTERY CONTROL DEVICE

PROBLEM TO BE SOLVED: To provide a battery control method for appropriately decreasing remaining battery power in the case of long-time storage or the like.SOLUTION: A battery control method for adjusting remaining battery power of a battery pack configured by combining multiple single batteries in response to an instruction from the outside includes: first steps S210-S230 for detecting a voltage of the battery pack; second steps S240-S270 for discharging voltages of the single batteries so as to drop to a predetermined value when the voltage of the battery pack is higher than a predetermined value; and a third step B for shifting an operation mode to a sleep mode when a voltage of a predetermined single battery among the single batteries is equal to or lower than a predetermined value or the voltage of the battery pack is equal to or lower than the predetermined value.SELECTED DRAWING: Figure 4 【課題】長時間の保存時などに電池残量を適切に減少させるための電池制御方法を提供する。【解決手段】外部からの指示に応じて複数の単電池の組み合わせからなる組電池の電池残量を調整する電池制御方法は、前記組電池の電圧を検出する第１ステップＳ２１０〜Ｓ２３０と、前記組電池の電圧が所定値より高いとき、前記単電池のそれぞれの電圧を所定値まで降下させるよう放電する第２ステップＳ２４０〜Ｓ２７０と、前記単電池のうちの所定の単電池の電圧が所定値以下であるか、または前記組電池の電圧が所定値以下であるときに動作モードをスリープモードとする第３ステップＢと、を含む。【選択図】図４